Dedicated to Ulrich Schöllkopf, the pioneer of a-metalated isocyanide chemistry
Abstract
α-Metalated isocyanides are a versatile class of compounds that can easily be employed in various transformations, affording tangible libraries for screening campaigns. We report the ring-opening reactions of cyclic anhydrides and lactones with three different metalated isocyanides that readily give 4,5-disubstituted oxazoles, including useful drug-like synthetic intermediates with two functional groups as handles for further modifications.
Key words
isocyanides - tosylmethyl isocyanide - oxazoles - anhydrides - lactones